Showing posts with label saving. Show all posts
Showing posts with label saving. Show all posts

Friday, April 21, 2017

Saving files in Photoshop

Saving files in Photoshop

Saving files in Photoshop and file formats.

The file format you use to save your work in Photoshop will depend on how the image will be used.

Preserving Layers

If you want to perserve layer information so you can re-edit the image or apply the same techiques to another image, then save the image as a .psd file a PhotoShop Document.

The Menu item is

File > Save As

Keyboard short cut

Shift + Control + S (PC)

Shift + Command + S (Mac)

Save as Photshop Document

 

 

 

 

 

 

 

 

 

 

 

 

 

In the Save As Dialogue box

Give the file a unique name (Photoshop will add the extension, in this case .psd)

You can also check

 Save:  ? As A Copy and photoshop will add the word copy to the file name in this case it would be "Beach copy.psd"

TIP: In Photoshop, if there is a button or icon that you dont know what it does, put your "pointer" over the item and dont move it... in a few seconds a yellow box will popup and tell you what it does!

If you want to perserve layers in the PSD document Make sure the Layers box is checked and always perserve your color profile..

Saving for the Internet

The .jpg file format is "lossey" the more the file is compressed, the more data is thrown away. Too much compression and the image/photo looses detail...

The menu is 

File > Save for Web...

Whats important here is to choose how much compression, and the file size you want to actually display on the web or in an e-mail

If the file is going to be displayed on a web page Check Convert to sRGB 

 

Save for WEb Dialogue


 


 

 

 

 

 

 

 

 

 

 

 

 

When you make all your choices click the Save... button at the bottom of the page...

 

 

 

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Thursday, January 19, 2017

Saving jpegs the saga continues

Saving jpegs the saga continues

Sam Siciliano asked the following question...

Gary, I tried using the alternate save for web rather than save as, but I ran into many memory issues.  Im not exactly sure what is going on.  Im running Windows XP, and I have about as much usable memory as possible with that OS.  I have 4G, of which about 3.2G is addressable.  Photoshop Preferences shows that it can get up to around 1.6G, and I set the level up to 1.2G, which it seems to recommend.  However, I keep getting warning messages pop up when I try to view jpegs in save for web 2-up.  Forget 4-up!  If I lower the percentage (of which Im not sure) and start shrinking what is displayed in the windows, I have better luck.

I wondered if the sheer size of my files is creating a problem.  My Sony full-frame has one of the biggest sensors available, and my raw files are around 33M.  When I save a psd file in CS5 in 16-bit mode with that Prophoto RGB color profile and with even a couple layers, I get files of about 350M!  This does seem rather huge to me.  When I was using Photoshop Elements, 8 bit, and default sRGB, my files were only around 150M.  However, I had memory issues with save for web there as well.  Anyway, Ill try to bring in a file to try on the class PCs, but let me know if you have any ideas or suggestions!

 

You actually are asking a real good question here…

 

and It finally dawned on me what the "size" requester is useful for in Camera Raw.
At some point when you send photos to Photoshop you need to decide what size you require for final output. What you see in this requester depends on the camera that you are using.

Workflowoptions

You need to be careful here, as you need to choose a size that is going to give you the best print at the ppi (Pixels Per inch) that you are sending to the printer.
The larger the print the more resolution (Total megapixels needed)
Save for Web will issue a warning about size as it creates cache space for each display window…
Most .jpg files are used for display on the web. Or for Computer slideshows with images formatted for the resolution of the screen. And as a result are have a "Low" Resolution...
Saveforweb
One of the places where you can make a resolution (size) commitment is with
Image > Image Size…
Imagesize
How large a resolution do you need for a "perfect" print?

Divide the width of a picture in pixels by the # of pixels per inch (PPI) --the value you told the printer to print per inch

EG from the data in the above requester

Width:
3456 pixels / 300 pixels per inch
= 11.52 inches

Height:
2304 Pixels / 300 
Pixels per inch
=7.68 inches
You can of course turn that around and calculate the # of pixels needed for say a 12 x 18 print @300 PPI
12 inches x 300 Pixels/inch  = 3600 Pixels
18 inches x 300 Pixels/inch =  5400 Pixels
To print a bigger picture youd need either more resolution (More Mega-pixels) or print with less ppi
and, you can always change the PPI without affecting the Resolution of the image
decisions, decisions, decisions
got more questions?
as usual holler!

 

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